NEWARKNew Jersey Performing Arts Center ''On Top of Spaghetti,'' an interactive performance featuring short plays and ragtime music and dance, presented by the Paper Bag Players. Through April 27. $12 and $22. New Jersey Performing Arts Center, 1 Center Street. (888) 466-5722; www.njpac.org.

NORTH PLAINFIELD North Plainfield High School Auditorium ''Project Fabricland,'' a sewing competition and fashion show featuring aspiring fashion designers ages 10 to 17. May 3 at 10 a.m. $5 and $10. North Plainfield High School Auditorium, 34 Wilson Avenue. (908) 769-6000; extension 3102.

MUSIC AND DANCE

BRANCHBURG The Theatre, Raritan Valley Community College ''Sea of Love,'' a spring concert presented by the Raritan Valley Community College Chorale, featuring ''Neue Liebeslieder Walzer,'' by Brahms. May 9 at 8 p.m. $5 to $12. The Theater, Raritan Valley Community College, Route 28 and Lamington Road in North Branch. (908) 725-3420; www.rvccarts.org.

NEWARK New Jersey Performing Arts Center ''Riverdance,'' a celebration of Irish music, song and dance. Through April 27. $23 to $79. ''Dance Jam,'' dancers from three companies, the New Jersey Dance Theater Ensemble, Usaama Dance Company and In the Spotlight, come together to showcase collective dance pieces. May 3 and May 4. $12 and $13. Alvin Ailey American Dance Theater. May 9 through May 11. $23 to $89. New Jersey Performing Arts Center, 1 Center Street. (888) 466-5722; www.njpac.org.